Personally Don't waste time looking a Fedevel, he just show you how to use the software, of course its important to know but he does have some bad habits on creating Designs and it looks like he does not have experience creating Real PCB for the industry, maybe at some time he did but looking at the videos for me there are some more important thinks to know when creating PCB's...
This are some Basic Rules and General Knowledge..
Always keep in mind how the current Flow (in theory)
Always know what type of Signals you are routing
for The Power Nets (High Current in Your Design), do use Fat Traces or Planes
for the Signals, always look at the Return Path and place it Close to the Signal Path or in parallel.
always think on how you will be assembling or soldering your parts.
Sometimes do follow the connection as you may drawn the schematic, this is to avoid confusion when you are on the Layout, in example, on the Layout you always see Net Names, and the target is to Connect them, but do it on the way that it does make sense, like one example i give you on the Caps.
for manufacturing purposes, for a non expensive or standard board you can use 12 mils of spaces Copper to Copper, 12 mils of trace widths, 20 mils from Holes to a Different Net, 10 Mils of Annular Ring for Vias and for Thru Hole please make sure you will have enough space for soldering, 20 mils it may be good, or take a caliper and you will get an idea, for solder mask you can use 4 mils of Solder Mask Expansions, something like this, those are not mandatory values but if you will use a fab house, please check with them, all of them have different requirements but in your case the rules i mentioned it will work for you, you can do less in some cases but those will be easy to do by any manufacturer or even if you are doing it at home.
in your case you can make the traces as fat as you can but always please keep in mind the different signals and do not get them so close because they may interact one with the other...
by the way, i'm not against the fedevel guy but do not trust him on all he say, trust me, i have a lot of experience doing PCB for any application you may think, just to give you an idea i have made 50 Layer Boards of 537mm by 457 mm, Control Impedance Traces on (24 layers), Differential Pairs, Length Matching, 8000 Nets in Total, 6233 components, etc.. and a lot more PCB's for +60GHz..
if you could give me the Complete BOM i may be able to Do from scrach and make a video for sonsivri Guys
, what do you think? you can use you board but i just want to explain some bad habits even so called profesionals do with schematics and layout, actually i'm creating some videos of how to properlly do a MKR100 Iot Arduino Board on Altium, but this is not completed yet....